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Difference between revisions of "intel/microarchitectures/comet lake"
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Revision as of 14:56, 11 May 2020

Edit Values
Comet Lake µarch
General Info
Arch TypeCPU
DesignerIntel
ManufacturerIntel
Process14 nm
Core Configs4
Pipeline
TypeSuperscalar, Superpipeline
OoOEYes
SpeculativeYes
Reg RenamingYes
Stages14-19
Decode5-way
Instructions
ISAx86-64
ExtensionsMOVBE, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, FSGSBASE, RDRND, FMA3, F16C, BMI, BMI2, VT-x, VT-d, TXT, TSX, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVE, SGX, MPX
Cache
L1I Cache32 KiB/core
8-way set associative
L1D Cache32 KiB/core
8-way set associative
L2 Cache256 KiB/core
4-way set associative
L3 Cache2 MiB/core
Up to 16-way set associative
L4 Cache128 MiB/package
on Iris Pro GPUs only
Cores
Core NamesComet Lake U,
Comet Lake S
Succession

Comet Lake (CML) is Intel's successor to Coffee Lake, an enhanced 14 nm process microarchitecture for mainstream desktops and mobile devices.

For desktop and mobile, Comet Lake is branded as 10th Generation Intel Core i3, Core i5, Core i7, and Core i9 processors.

Codenames

Core Abbrev Description Graphics Target
Comet Lake S CML-S Mainstream performance GT2 Desktop performance to value, AiOs, and minis
Comet Lake U CML-U Ultra-low power GT2 Light notebooks, portable All-in-Ones (AiOs), Minis, and conference room

Brands

Intel is expected to release Comet Lake under 3 main brand families:

Logo Family General Description Differentiating Features
Cores HT AVX AVX2 TBT ECC
core i3 logo (2015).png Core i3 Low-end Performance
core i5 logo (2015).png Core i5 Mid-range Performance
core i7 logo (2015).png Core i7 High-end Performance
Core i9 High-end/Enthusiasts Performance

Release Dates

Comet Lake processors were introduced in a number of phases. Initial mobile processors were launched on August 21, 2019. Intel followed up with the remaining desktop parts on April 30, 2020. Enterprise and vPro models were followed on May 13, 2020.

Compatibility

There are no official drivers by Intel for Windows 7 or Windows 8. Microsoft announced that only Windows 10 will have support for Kaby Lake. Linux added initial support for Kaby Lake starting with Linux Kernel 4.5.

Vendor OS Version Notes
Microsoft Windows Windows 7 No Support
Windows 8 No Support
Windows 10 Support
Linux Linux Kernel 4.5 Initial Support (Fedora 24, Yocto v2.2, ..)
Google Chromium Chromium Support
Wind River VxWorks VxWorks 7 Support

Compiler support

Compiler Arch-Specific Arch-Favorable
ICC -march=skylake -mtune=skylake
GCC -march=skylake -mtune=skylake
LLVM -march=skylake -mtune=skylake
Visual Studio /arch:AVX2 /tune:skylake

CPUID

Further information: Intel CPUIDs
Core Extended
Family 		Family Extended
Model 		Model Stepping
U 0 0x6 0x8 0xE 0xC
Family 6 Model 142 Stepping 12
S/H 0 0x6 0xA 0x5 0x5 (S)/0x2 (H)
Family 6 Model 165 Stepping 5/2

Architecture

Key changes from Coffee Lake

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See also

Retrieved from "https://en.wikichip.org/w/index.php?title=intel/microarchitectures/comet_lake&oldid=96967"
Facts about "Comet Lake - Microarchitectures - Intel"
RDF feed
codenameComet Lake +
core count4 +
designerIntel +
full page nameintel/microarchitectures/comet lake +
instance ofmicroarchitecture +
instruction set architecturex86-64 +
manufacturerIntel +
microarchitecture typeCPU +
nameComet Lake +
pipeline stages (max)19 +
pipeline stages (min)14 +
process14 nm (0.014 μm, 1.4e-5 mm) +